Fernox TF1 Sigma Filter – 22mm with Valves Electric Floor Heating Full bore isolation valves have

Full bore isolation valves have the same internal diameter as the connected pipework and create no restriction

Direct Professional2 Retrofit

This is the highest output available from a 230 V single-phase heat-only electric boiler

The integrated sensor and controller continuously adjust the valve to maintain the setpoint

Adequate internal space and dedicated cable access points for tidy

Fernox TF1 Sigma Filter – 22mm with Valves Electric Floor Heating Full bore isolation valves haveFernox TF1 Sigma Filter 22mm with Valves The Fernox TF1 Sigma Filter 22mm (with valves) is a high performance, precision engineered in line system filter designed to protect central heating systems from magnetic and non magnetic debris. Its robust, sealed, lidless construction and compact design make it ideal for installation in restricted spaces, fitting both horizontal and vertical pipework. The filter is easy to clean via the integrated drain valve